Summit County health officials report measles wastewater hits but no confirmed local cases

Summit County health officials told the Board of Health they detected two single positive measles signals in county wastewater samples—one in Colville on Nov. 25 and another in the Centerville Basin on Dec. 2—but emphasized that no laboratory-confirmed measles cases have been identified in the county.

“We have not had any cases in Summit County,” Nancy said while reviewing the department’s respiratory-disease dashboard and wastewater surveillance results. She noted that Utah has reported 115 confirmed measles cases in 2025 and that nearly 2,000 confirmed cases were reported nationwide.

Staff cautioned that wastewater sheds along Interstate 80 include transient locations such as hotels and gas stations, so a wastewater hit can flag virus circulation without indicating a local resident case. The department said it will continue active monitoring and follow up on clinical testing if signals persist.

At the vaccine update, department staff reported administering just over 1,500 seasonal flu doses at department clinics and just over 1,000 COVID doses so far this season; MMR doses administered by the health department were 174 as of Dec. 9, with about a dozen more since that date. Staff also highlighted a downward trend in flu vaccination coverage countywide and described planned outreach, including a pre-holiday walk-in clinic for flu, COVID and MMR vaccines.

Board members asked about variant typing and whether international or U.K. reports (including an H5 variant discussion) would translate into local detections; staff said national platforms such as CDC FluView may report typing and that they would follow up with additional data.